PIR Sensor and PIR Motion Sensor Solutions for Smart Lighting
PIR sensors detect infrared changes from people and objects within a sensing area. In smart lighting and automation, a PIR sensor helps detect movement and trigger the right response, such as switching lights on when someone enters a space and reducing unnecessary usage when the area is empty.
Use this PIR sensor range when you need passive infrared motion detection for automatic lights, corridors, staircases, washrooms, offices, homes, hotels, hospitals and commercial buildings. For broader automation options, compare this range with Sensinova motion sensors, microwave sensors and true presence sensors.
What Is a PIR Sensor?
A PIR sensor, or passive infrared sensor, is a motion detection device that responds to infrared energy changes. It is commonly used in lighting automation, motion detector systems, corridors, staircases, washrooms, offices, homes, hotels, hospitals, and commercial buildings where movement-based control is required.
How PIR Motion Sensors Work
PIR motion sensors do not emit energy to detect movement. Instead, they sense changes in infrared radiation within their detection zone. When a person moves through that area, the sensor can help trigger connected lighting or automation systems based on the application.
Where PIR Sensors Are Used
Application area
How PIR sensors help
Homes and apartments
Support automatic lighting in rooms, passages, staircases, and utility areas.
Offices and commercial spaces
Help reduce unnecessary lighting use in cabins, corridors, meeting rooms, and shared spaces.
Hotels and hospitals
Support convenience and efficient lighting control in frequently used areas.
Staircases and corridors
Help lights respond when people move through low-light or transit areas.
Washrooms and service areas
Reduce manual switching and avoid lights staying on unnecessarily.
PIR Sensor Selection Checklist
Application type: choose the PIR sensor based on whether it is for lighting automation, movement detection, or energy-saving control.
Mounting location: consider ceiling, wall, corridor, staircase, or room placement before selecting the model.
Detection need: match the PIR sensor with the expected movement pattern and usage area.
Lighting system: check how the PIR sensor will work with the connected light or automation setup.
Environment: choose the product category based on whether the space is residential, commercial, hospitality, healthcare, or industrial.
PIR means passive infrared. A PIR sensor detects changes in infrared energy within its sensing area and is commonly used for motion detection and lighting automation.
Where are PIR motion sensors commonly used?
PIR motion sensors are used in homes, offices, corridors, staircases, washrooms, hotels, hospitals, and commercial areas where movement-based automation is useful.
Can PIR sensors help save energy?
Yes. PIR sensors can help reduce unnecessary lighting usage by supporting automatic switching based on detected movement, depending on the selected product and setup.
Experiment with detection zones. Toggle the Glass Barrier and
drag it up and
down to test blind spots.
11 Zones
Low ResHigh Res
Environment
window
Glass Barrier
touch_app
Enabled! Grab the glass wall on the right and drag it up/down to adjust
position.
splitscreen_left
Vertical Wall
touch_app
Enabled! Drag the vertical wall left/right to adjust position.
Load Control
5 sec
5s60s
info
Welcome!
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Drag the black dot to move!
Motion Detection
No Motion
lightbulb
How PIR Works
Passive Infrared (PIR) sensors
detect changes in heat. The sensor is divided into zones (the pie slices). When
a warm object (you!) crosses from one zone to another, the sensor sees a voltage spike. If you
stay perfectly still, the sensor 'forgets' you are there because there is no change in
heat!
